Template-Free Synthesis of Mesoporous β-MnO2 Nanoparticles: Structure, Formation Mechanism, and Catalytic Properties

2020 ◽  
Vol 12 (32) ◽  
pp. 36004-36013
Author(s):  
Yui Yamaguchi ◽  
Ryusei Aono ◽  
Eri Hayashi ◽  
Keigo Kamata ◽  
Michikazu Hara
Keyword(s):  
Structure Formation ◽  
Formation Mechanism ◽  
Catalytic Properties ◽  
Mno2 Nanoparticles ◽  
Template Free

Facile and template-free fabrication of mesoporous 3D nanosphere-like MnxCo3−xO4 as highly effective catalysts for low temperature SCR of NOx with NH3

2018 ◽  
Vol 6 (7) ◽  
pp. 2952-2963 ◽  
Author(s):  
Xiaonan Hu ◽  
Lei Huang ◽  
Jianping Zhang ◽  
Hongrui Li ◽  
Kaiwen Zha ◽  
...  
Keyword(s):  
Low Temperature ◽  
Formation Mechanism ◽  
Operating Temperature ◽  
Synthesis Conditions ◽  
Highly Effective ◽  
Temperature Window ◽  
Template Free ◽  
Low Temperature Scr ◽  
Scr Of Nox

Mesoporous 3D nanosphere-like MnxCo3−xO4 was obtained via a template-free method. The formation mechanism was proposed and the synthesis conditions were carefully investigated. The operating temperature window was 75–325 °C when the NOx conversion was above 80%.

scholarly journals Phenomenological thermodynamics and the structure formation mechanism of the CuTi2S4 rhombohedral phase

2016 ◽  
Vol 18 (15) ◽  
pp. 10600-10606 ◽  
Author(s):  
Michail V. Talanov ◽  
Vladimir B. Shirokov ◽  
Valery M. Talanov
Keyword(s):  
Phase Transition ◽  
Structure Formation ◽  
Formation Mechanism ◽  
Structural Phase Transition ◽  
Structural Phase ◽  
Rhombohedral Phase

The theory of structural phase transition in CuTi2S4 is proposed.

scholarly journals Formation Mechanism of Well-Ordered Densely Packed Nanoparticle Superlattices Deposited from Gas Phase on Template-Free Surfaces

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Chang Liu ◽  
Fei Liu ◽  
Chen Jin ◽  
Sishi Zhang ◽  
Lianhua Zhang ◽  
...  
Keyword(s):  
Gas Phase ◽  
Formation Mechanism ◽  
Substrate Surface ◽  
Deposition Process ◽  
Solution Chemistry ◽  
Two Dimensional ◽  
Self Assembled Monolayer ◽  
Free Surfaces ◽  
Phase Cluster ◽  
Template Free

AbstractSuperlattices of nanoparticles are generally produced based on solution chemistry processes. In this paper, we demonstrate that self-assembled monolayer structures of nanoparticles with superlattice periodicities can also be produced on template-free surfaces in the gas-phase cluster beam deposition process. It is found that the packing of Fe nanoparticles corresponds to an average of two-dimensional densely packed lattice with a hexagonal summary. By controlling the nanoparticle coverage, the two-dimensional densely packed monolayer morphology can spread to the whole substrate surface being deposited. A formation mechanism of the ordered monolayers is proposed. The densely packed morphologies are formed by the balance between the diffusion rate of the nanoparticles and their filling speed on the substrate surface determined by the deposition rate, and the ordering of the nanoparticle arrays is driven by the inter-particle attractive interactions. The model is strongly supported by a series of carefully designed cluster deposition experiments.

Mesoporous CeO2 nanoparticles assembled by hollow nanostructures: formation mechanism and enhanced catalytic properties

CrystEngComm ◽  
2014 ◽  
Vol 16 (37) ◽  
pp. 8777-8785 ◽  
Author(s):  
Jingcai Zhang ◽  
Hongxiao Yang ◽  
Shuping Wang ◽  
Wei Liu ◽  
Xiufang Liu ◽  
...  
Keyword(s):  
Formation Mechanism ◽  
Catalytic Properties ◽  
Ceo2 Nanoparticles ◽  
Hollow Nanostructures ◽  
Mesoporous Ceo2

In this paper, novel hierarchically mesoporous CeO2 nanoparticles assembled by hollow nanocones were prepared through a facile solvothermal strategy using Ce(HCOO)3 as the precursor.

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